:root {
            --ai_auto_primary: #2A6E35;
            --ai_auto_secondary: #6AB547;
            --ai_auto_accent1: #1D3557;
            --ai_auto_accent2: #E63946;
            --ai_auto_light: #F1FAEE;
            --ai_auto_dark: #1D2D26;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--ai_auto_light);
            color: var(--ai_auto_dark);
        }
        
        /* Brutalism/粗犷风格 */
        .ai_auto_brutal-shadow {
            box-shadow: 8px 8px 0 var(--ai_auto_dark);
            border: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_brutal-shadow-sm {
            box-shadow: 4px 4px 0 var(--ai_auto_dark);
            border: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_brutal-border {
            border: 2px solid var(--ai_auto_dark);
        }
        
        /* 导航条样式 */
        #ai_auto_navbar {
            background-color: var(--ai_auto_primary);
            padding: 0.5rem 1rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        
        #ai_auto_navbar .ai_auto_navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: white;
            letter-spacing: -1px;
        }
        
        #ai_auto_navbar .ai_auto_nav-link {
            color: rgba(255,255,255,0.85);
            font-weight: 600;
            padding: 0.5rem 1rem;
            transition: all 0.3s;
            border-radius: 4px;
        }
        
        #ai_auto_navbar .ai_auto_nav-link:hover {
            color: white;
            background-color: var(--ai_auto_secondary);
        }
        
        #ai_auto_navbar .ai_auto_search-form .form-control {
            border: 2px solid var(--ai_auto_dark);
            border-radius: 0;
        }
        
        #ai_auto_navbar .ai_auto_search-form .btn {
            background-color: var(--ai_auto_accent1);
            color: white;
            border: 2px solid var(--ai_auto_dark);
            border-radius: 0;
        }
        
        /* Banner样式 */
        #ai_auto_banner {
            background-color: var(--ai_auto_secondary);
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%232A6E35' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
            padding: 5rem 0;
            margin-bottom: 3rem;
        }
        
        .ai_auto_banner-content {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }
        
        .ai_auto_banner-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--ai_auto_light);
            text-shadow: 3px 3px 0 var(--ai_auto_dark);
        }
        
        .ai_auto_banner-info {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            color: var(--ai_auto_light);
        }
        
        #ai_auto_banner .ai_auto_search-form .form-control {
            height: 60px;
            font-size: 1.2rem;
            border: 3px solid var(--ai_auto_dark);
            border-radius: 0;
        }
        
        #ai_auto_banner .ai_auto_search-form .btn {
            height: 60px;
            background-color: var(--ai_auto_accent1);
            color: white;
            font-weight: bold;
            border: 3px solid var(--ai_auto_dark);
            border-radius: 0;
            padding: 0 2rem;
        }
        
        /* 文章板块通用样式 */
        #ai_auto_home-artice {
            padding: 3rem 0;
        }
        
        .ai_auto_section-header {
            position: relative;
            margin-bottom: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--ai_auto_primary);
        }
        
        .ai_auto_section-header h2 {
            font-weight: 800;
            font-size: 2.2rem;
            display: inline-block;
            background-color: var(--ai_auto_primary);
            color: white;
            padding: 0.5rem 1.5rem;
            margin: 0;
            box-shadow: 6px 6px 0 var(--ai_auto_dark);
        }
        
        /* 特色文章板块 - 杂志式排版 */
        #ai_auto_feature-article {
            margin-bottom: 4rem;
        }
        
        .ai_auto_magazine-left {
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        
        .ai_auto_magazine-featured {
            /*height: 100%;*/
            position: relative;
            background-color: var(--ai_auto_accent1);
            color: white;
            box-shadow: 8px 8px 0 var(--ai_auto_dark);
            transition: all 0.3s ease;
            display: block;
        }
        
        .ai_auto_magazine-featured:hover {
            transform: translate(-3px, -3px);
            box-shadow: 11px 11px 0 var(--ai_auto_dark);
        }
        
        .ai_auto_magazine-img {
            width: 100%;
            /*height: 300px;*/
            object-fit: cover;
            opacity: 0.7;
        }
        
        .ai_auto_magazine-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 1.5rem;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
        }
        
        .ai_auto_magazine-content h3 {
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_magazine-content .ai_auto_badge {
            background-color: var(--ai_auto_secondary);
            color: var(--ai_auto_dark);
            font-weight: 700;
            border-radius: 0;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_magazine-item {
            display: flex;
            margin-bottom: 1.5rem;
            background-color: white;
            box-shadow: 4px 4px 0 var(--ai_auto_dark);
            transition: all 0.3s ease;
            border: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_magazine-item:hover {
            transform: translate(-3px, -3px);
            box-shadow: 7px 7px 0 var(--ai_auto_dark);
        }
        
        .ai_auto_magazine-item-img {
            width: 220px;
            height: 200px;
            object-fit: cover;
            border-right: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_magazine-item-content {
            padding: 1rem;
            flex: 1;
        }
        
        .ai_auto_magazine-item-content h4 {
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_magazine-item-content p {
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            color: #555;
        }
        
        /* 最近文章板块 - 单列时间线卡片 */
        #ai_auto_last-article {
            margin-bottom: 4rem;
        }
        
        .ai_auto_timeline-card {
            position: relative;
            margin-bottom: 2rem;
            padding-left: 30px;
            border-left: 3px solid var(--ai_auto_primary);
        }
        
        .ai_auto_timeline-card::before {
            content: "";
            position: absolute;
            left: -10px;
            top: 20px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: var(--ai_auto_secondary);
            border: 3px solid var(--ai_auto_dark);
        }
        
        .ai_auto_timeline-date {
            background-color: var(--ai_auto_primary);
            color: white;
            padding: 0.5rem 1rem;
            display: inline-block;
            font-weight: 700;
            margin-bottom: 1rem;
            box-shadow: 4px 4px 0 var(--ai_auto_dark);
        }
        
        .ai_auto_timeline-content {
            background-color: white;
            padding: 1.5rem;
            display: flex;
            box-shadow: 4px 4px 0 var(--ai_auto_dark);
            border: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_timeline-img {
            width: 200px;
            height: 200px;
            object-fit: cover;
            margin-right: 1.5rem;
            border: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_timeline-text {
            flex: 1;
        }
        
        .ai_auto_timeline-text h3 {
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_timeline-text p {
            margin-bottom: 1rem;
        }
        
        .ai_auto_timeline-author {
            font-weight: 600;
            color: var(--ai_auto_accent1);
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_timeline-tags {
            margin-top: 1rem;
        }
        
        .ai_auto_timeline-tags .ai_auto_badge {
            background-color: var(--ai_auto_light);
            color: var(--ai_auto_dark);
            font-weight: 600;
            border-radius: 0;
            margin-right: 0.5rem;
            border: 1px solid var(--ai_auto_dark);
            padding: 0.3rem 0.7rem;
        }
        
        /* 推荐文章板块 - 瀑布流布局 */
        #ai_auto_recommend-article {
            margin-bottom: 4rem;
        }
        
        .ai_auto_masonry {
            column-count: 3;
            column-gap: 1.5rem;
        }
        
        .ai_auto_masonry-item {
            break-inside: avoid;
            margin-bottom: 1.5rem;
            background-color: white;
            box-shadow: 4px 4px 0 var(--ai_auto_dark);
            border: 2px solid var(--ai_auto_dark);
            transition: all 0.3s ease;
        }
        
        .ai_auto_masonry-item:hover {
            transform: translate(-3px, -3px);
            box-shadow: 7px 7px 0 var(--ai_auto_dark);
        }
        
        .ai_auto_masonry-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 2px solid var(--ai_auto_dark);
        }
        
        .ai_auto_masonry-content {
            padding: 1.5rem;
        }
        
        .ai_auto_masonry-content h3 {
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_masonry-content p {
            margin-bottom: 1rem;
            color: #555;
        }
        
        .ai_auto_masonry-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: #777;
        }
        
        .ai_auto_masonry-tags .ai_auto_badge {
            background-color: var(--ai_auto_secondary);
            color: var(--ai_auto_dark);
            font-weight: 600;
            border-radius: 0;
            margin-right: 0.5rem;
            padding: 0.3rem 0.7rem;
            display: inline-block;
            margin-top: 5px;
        }
        
        /* 订阅板块 */
        #ai_auto_subscribe {
            background-color: var(--ai_auto_accent1);
            padding: 4rem 0;
            margin: 3rem 0;
        }
        
        .ai_auto_subscribe-container {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1rem;
        }
        
        .ai_auto_subscribe-info {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
            margin-bottom: 2rem;
        }
        
        .ai_auto_subscribe-form {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-form .form-control {
            height: 55px;
            border: 3px solid var(--ai_auto_dark);
            border-radius: 0;
            font-size: 1.1rem;
        }
        
        .ai_auto_subscribe-form .btn {
            height: 55px;
            background-color: var(--ai_auto_secondary);
            color: var(--ai_auto_dark);
            font-weight: 800;
            border: 3px solid var(--ai_auto_dark);
            border-radius: 0;
            padding: 0 1.5rem;
            white-space: nowrap;
        }
        
        /* Footer样式 */
        #ai_auto_footer {
            background-color: var(--ai_auto_dark);
            color: var(--ai_auto_light);
            padding: 3rem 0 0;
        }
        
        .ai_auto_footer-title {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--ai_auto_secondary);
        }
        
        .ai_auto_footer-desc {
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_footer-list {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-list li {
            margin-bottom: 0.8rem;
        }
        
        .ai_auto_footer-list a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .ai_auto_footer-list a:hover {
            color: var(--ai_auto_secondary);
            text-decoration: underline;
        }
        
        .ai_auto_footer-contact {
            color: rgba(255,255,255,0.7);
            margin-bottom: 0.8rem;
        }
        
        .ai_auto_footer-copyright {
            background-color: rgba(0,0,0,0.3);
            padding: 1.5rem 0;
            margin-top: 3rem;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .ai_auto_masonry {
                column-count: 2;
            }
            
            .ai_auto_timeline-content {
                flex-direction: column;
            }
            
            .ai_auto_timeline-img {
                width: 100%;
                margin-right: 0;
                margin-bottom: 1rem;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_masonry {
                column-count: 1;
            }
            
            .ai_auto_banner-title {
                font-size: 2.5rem;
            }
            
            .ai_auto_magazine-item {
                flex-direction: column;
            }
            
            .ai_auto_magazine-item-img {
                width: 100%;
                height: 150px;
                border-right: none;
                border-bottom: 2px solid var(--ai_auto_dark);
            }
            
            .ai_auto_subscribe-form {
                flex-direction: column;
            }
            
            .ai_auto_subscribe-form .btn {
                margin-top: 1rem;
            }
        }